YearPToutPBase 100
201189.86%100
201282.11%97.2
201387.94%94.3
201490.2%91.5
201594.18%88.6
2016100%85.8
201788.17%83
201877.2%80.1
201971.18%77.3
202064.32%74.4
202160.6%71.6
Evolution : -28 % entre 2011 et 2021 soit 2.99 % de perte par an.